Polar is a colour scheme based on @arcticicestudio's Nord.
The Polar scheme uses the colours from Nord as-is, adding a pure white (#FFFFFF) background and reversing the roles of the Polar Night and Snow Storm palettes from the original Nord theme.
There is also a generator to rebuild the theme from the latest Nord themes where applicable, to make maintenence easier for a larger range of ports! The generator is written in Swift.
See the CHANGELOG for details on differences from 2.0.0 onwards.